I have a couple of Volvo pumps that were leaking and I determined that it was cheaper to buy a new pump than to rebuild the old. This was due to the shaft having a groove worn at the seal position. The cost of the shaft was the deal breaker for a rebuild.
I plan on trying a rebuild and repairing the shaft with a SKF Speedi-Sleeve. For $30 it looks like I can re-use a $150 shaft. Link below, what do you think?
However, one of my pumps has some dings on the interior of the body. They are almost like the interior was hit with a screw-driver tip. I have no clue how these marks ever occurred. This particular pump does not use a wear plate on the inside wall.
Here is my question- Is there a list of criteria that a pump must meet if it is able to be rebuilt successfully? For instance, if there are dings or gouges in the interior of the pump body, are these OK if they are polished flat?
At what condition must a pump simply be scrapped?